Liquid crystal display panel and driving method thereof

ABSTRACT

A liquid crystal display panel includes first and second substrates, first pixel electrodes, second pixel electrodes, common electrodes, first auxiliary electrodes, and a liquid crystal layer. The second substrate is disposed opposite to the first substrate. The liquid crystal layer is disposed between the first and the second substrates. The first pixel electrodes, the second pixel electrodes, and the common electrodes are disposed on the first substrate. The first auxiliary electrodes are disposed on the second substrate. One of the first pixel electrodes is not overlapping one of the first auxiliary electrodes in a vertical projection direction. A driving method of the liquid crystal display panel includes setting a first voltage difference in a wide viewing mode and a second voltage difference in a narrow viewing mode between the first auxiliary electrodes and the common electrodes and, respectively. The first voltage difference is less than the second voltage difference.

CROSS-REFERENCE TO RELATED APPLICATION

This non-provisional application claims priority to and benefit of,under 35 U.S.C. §119(a), Patent Application No. 105106897 filed inTaiwan R.O.C. on Mar. 7, 2016, the entire content of which is herebyincorporated by reference.

TECHNICAL FIELD

The present disclosure relates to a liquid crystal display panel and adriving method thereof, and more particularly to a liquid crystaldisplay panel switchable between a wide viewing angle mode and a narrowviewing angle mode and a driving method thereof.

BACKGROUND

Generally, in order to provide an image viewed by many peoplesimultaneously, a display commonly has a wide viewing angle displayeffect. However, in some cases, for example, when displayingconfidential information or entering passwords, the confidentialinformation may leak because it can easily be peeped by others due tothe wide viewing angle display effect. Thus, in order to satisfy the twodifferent requirements, an adjustable viewing angle display switchablebetween a wide viewing angle display mode and a narrow viewing angledisplay mode is becoming an important commodity in the display market.

Currently, privacy measures for a display are generally as follows: aprivacy filter is directly mounted onto the display along withadditional viewing angle control module unit(s). However, all of thesemethods cannot incorporate privacy measures into a display panel.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a liquidcrystal display panel and a driving method thereof, where firstauxiliary electrodes are not overlapping first pixel electrodes, therebyincreasing a front-viewing-angle transmittance in a narrow viewing anglemode and increasing a display contrast.

In order to achieve the above objective, one of the embodiments of thepresent invention provides a liquid crystal display panel, comprising afirst substrate, a second substrate, a plurality of first pixelelectrodes, a plurality of second pixel electrodes, a plurality ofcommon electrodes, a plurality of first auxiliary electrodes, and aliquid crystal layer. The second substrate is disposed opposite to thefirst substrate, and the liquid crystal layer is disposed between thefirst substrate and the second substrate. The first pixel electrodes,the second pixel electrodes, and the common electrodes are disposed onthe first substrate. The first auxiliary electrodes are disposed on thesecond substrate, and one of the first pixel electrodes is notoverlapping one of the first auxiliary electrodes in a verticalprojection direction.

In order to achieve the above objective, one of the embodiments of thepresent invention provides a driving method of a liquid crystal displaypanel, the driving method comprising: first providing a liquid crystaldisplay panel, wherein the liquid crystal display panel comprises afirst substrate, a second substrate, a plurality of first pixelelectrodes, a plurality of second pixel electrodes, a plurality ofcommon electrodes, a plurality of first auxiliary electrodes, and aliquid crystal layer, wherein the second substrate is disposed oppositeto the first substrate, and the liquid crystal layer is disposed betweenthe first substrate and the second substrate; the first pixelelectrodes, the second pixel electrodes, and the common electrodes aredisposed on the first substrate; the first auxiliary electrodes aredisposed on the second substrate, and one of the first pixel electrodesis not overlapping one of the first auxiliary electrodes in a verticalprojection direction; in a wide viewing angle mode, providing a firstvoltage difference between the first auxiliary electrodes and the commonelectrodes; and in a narrow viewing angle mode, providing a secondvoltage difference between the first auxiliary electrodes and the commonelectrodes, wherein the first voltage difference is less than the secondvoltage difference.

BRIEF DESCRIPTIONS OF THE DRAWINGS

FIG. 1 is a schematic viewing of a liquid crystal display panel of afirst embodiment of the present invention.

FIG. 2 is a schematic sectional viewing depicted along a line A-A′ inFIG. 1.

FIG. 3 is a schematic graph of a comparison between front-viewing-angletransmittances of the liquid crystal display panel of the firstembodiment of the present invention and a liquid crystal display panelof a comparative embodiment.

FIG. 4 is a schematic graph of a comparison between side-viewing-angletransmittances of the liquid crystal display panel of the firstembodiment of the present invention and the liquid crystal display panelof the comparative embodiment.

FIG. 5 is a schematic graph of a comparison between front-viewing-angletransmittances of the liquid crystal display panel of the firstembodiment of the present invention with different voltages applied tofirst auxiliary electrodes.

FIG. 6 and FIG. 7 are schematic graphs of a comparison betweenside-viewing-angle transmittances of the liquid crystal display panel ofthe first embodiment of the present invention and the liquid crystaldisplay panel of the comparative embodiment with different voltagesapplied to the first auxiliary electrodes respectively.

FIG. 8 is a schematic view of a way of disposing the first auxiliaryelectrodes of the liquid crystal display panel of the first embodimentof the present invention in a first aspect.

FIG. 9 is a schematic view of a way of disposing the first auxiliaryelectrodes of the liquid crystal display panel of the first embodimentof the present invention in a second aspect.

FIG. 10 is a schematic view of a way of disposing the first auxiliaryelectrodes of the liquid crystal display panel of the first embodimentof the present invention in a third aspect.

FIG. 11 is a schematic view of a way of disposing the first auxiliaryelectrodes of the liquid crystal display panel of the first embodimentof the present invention in a fourth aspect.

FIG. 12 is a schematic view of a way of disposing the first auxiliaryelectrodes of the liquid crystal display panel of the first embodimentof the present disclosure in a fifth aspect.

FIG. 13 is a schematic view of a way of disposing the first auxiliaryelectrodes of the liquid crystal display panel of the first embodimentof the present disclosure in a sixth aspect.

FIG. 14 is a schematic view of a way of disposing the first auxiliaryelectrodes of the liquid crystal display panel of the first embodimentof the present disclosure in a seventh aspect.

FIG. 15 is a schematic view of a way of disposing the first auxiliaryelectrodes of the liquid crystal display panel of the first embodimentof the present disclosure in an eighth aspect.

FIG. 16 is a schematic view of a way of disposing the first auxiliaryelectrodes of the liquid crystal display panel of the first embodimentof the present disclosure in a ninth aspect.

FIG. 17 is a schematic view of a way of disposing the first auxiliaryelectrodes of the liquid crystal display panel of the first embodimentof the present disclosure in a tenth aspect.

FIG. 18 is a schematic view of a way of disposing the first auxiliaryelectrodes of the liquid crystal display panel of the first embodimentof the present disclosure in an eleventh aspect.

FIG. 19 is a schematic view of a liquid crystal display panel of asecond embodiment of the present disclosure.

FIG. 20 is a schematic sectional view depicted along a line B-B′ in FIG.19.

FIG. 21 is a schematic view of a liquid crystal display panel of a thirdembodiment of the present disclosure.

FIG. 22 is a schematic view of a liquid crystal display panel of afourth embodiment of the present disclosure.

FIG. 23 is a schematic view of a liquid crystal display panel of a fifthembodiment of the present disclosure.

FIG. 24 is a schematic view of a liquid crystal display panel of a sixthembodiment of the present disclosure.

FIG. 25 is a schematic view of a liquid crystal display panel of aseventh embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

In order to allow a person of ordinary skill in the art to furtherunderstand the features and technical content of the present disclosure,reference can be made to the detailed description and accompanyingdrawings of the present disclosure.

Please refer to FIG. 1 and FIG. 2. FIG. 1 is a schematic viewing of aliquid crystal display panel of a first embodiment of the presentdisclosure. FIG. 2 is a schematic sectional viewing depicted along aline A-A′ in FIG. 1. For the convenience of description, the drawings ofthe present disclosure are merely exemplary and are provided for aneasier understanding of the present disclosure, and the detailed scalesof the drawings can be adjusted according to design requirements. Asshown in FIG. 1 and FIG. 2, the present embodiment provides a liquidcrystal display panel 100, wherein the liquid crystal display panel 100comprises a first substrate 10, a second substrate 20, first pixelelectrodes PE1, second pixel electrodes PE2, a plurality of commonelectrodes COM, first auxiliary electrodes E1, and a liquid crystallayer 30. In the liquid crystal display panel 100, a plurality of pixelareas PX is defined, wherein the pixel areas PX are first pixel areasPX1 or second pixel areas PX2. The pixel areas PX may be defined by gatelines GL, data lines DL and/or a patterned light-shielding layer BMinterlaced in the liquid crystal display panel 100, but not limitedthereto. It should be noted that, only two pixel areas PX, that is, onefirst pixel area PX1 and one second pixel area PX2, are depicted in FIG.1 and FIG. 2 for the convenience of description. However, in practice,the liquid crystal display panel 100 may comprise a plurality of firstpixel areas PX1 and a plurality of second pixel areas PX2. In otherwords, the liquid crystal display panel 100 may also comprise aplurality of first pixel electrodes PE1, a plurality of second pixelelectrodes PE2, and a plurality of first auxiliary electrodes E1. Thesecond substrate 20 is disposed opposite to the first substrate 10, andthe liquid crystal layer 30 is disposed between the first substrate 10and the second substrate 20. The first substrate 10 and the secondsubstrate 20 may be rigid substrates or flexible substrates. The rigidsubstrate is, for example, a glass substrate or a ceramic substrate, andthe flexible substrate is, for example, a plastic substrate or asubstrate formed of other appropriate materials. The first pixelelectrodes PE1, the second pixel electrodes PE2, and the commonelectrodes COM are disposed on the first substrate 10. The firstauxiliary electrodes E1 are disposed on the second substrate 20, and oneof the first pixel electrodes PE1 is substantially not overlapping oneof the first auxiliary electrodes E1 in a vertical projection directionZ. In addition, one of the second pixel electrodes PE2 overlaps one ofthe first auxiliary electrodes E1 in the vertical projection directionZ.

Further, the first pixel electrodes PE1 are disposed in the first pixelareas PX1, and the second pixel electrodes PE2 are disposed in thesecond pixel areas PX2, while the first auxiliary electrodes E1 are notoverlapping the first pixel electrodes PE1, the first auxiliaryelectrodes E1 are not disposed in the first pixel areas PX1. In otherwords, the first auxiliary electrodes E1 are only disposed in a portionof the pixel areas PX rather than all of the pixel areas PX. Inaddition, other required material layers and/or components may bedisposed on the first substrate 10 and the second substrate 20 asrequired. For example, when the first substrate 10 is an array substrateand the second substrate 20 is a color filter substrate, thin filmtransistors TFT, data lines DL, gate lines GL, and required insulatingmaterial layers (for example, a first dielectric layer 11, a seconddielectric layer 12, and a third dielectric layer 13 shown in FIG. 2)may be further disposed on the first substrate 10, and a color filterlayer CF, a patterned light-shielding layer BM, and a protection layerOC may be further disposed on the second substrate 20, but not limitedthereto.

In a driving method of the liquid crystal display panel 100 of thepresent embodiment, in a wide viewing angle mode, a first voltagedifference provided between the first auxiliary electrodes E1 and thecommon electrodes COM may be set to be about zero, for example. However,in the wide viewing angle mode, in order to increase the range ofviewing angle, the first voltage difference provided between the firstauxiliary electrodes E1 and the common electrodes COM may not be zero.In a narrow viewing angle mode, a second voltage difference providedbetween the first auxiliary electrodes E1 and the common electrodes COMis not zero; however, in order to reduce the range of the viewing angle,the second voltage difference in the narrow viewing angle mode isgreater than an operating voltage difference in the wide viewing anglemode. In other words, the liquid crystal display panel 100 can beswitched to the wide viewing angle mode or the narrow viewing angle modeby controlling the voltage difference between the first auxiliaryelectrodes E1 and the common electrodes COM. It should be noted that,since the first auxiliary electrodes E1 configured to achieve a narrowviewing angle display effect are not disposed in the entire pixel areasPX, a front-viewing-angle transmittance in the narrow viewing angle modecan thereby be increased, and on the other hand, since the first pixelelectrodes PE1 and the common electrodes COM in the pixel areas PX (forexample, the first pixel areas PX1) without the first auxiliaryelectrodes E1 being disposed are not covered by the first auxiliaryelectrodes E1, at least a portion of the first pixel electrodes PE1and/or the common electrodes COM may be configured to perform a touchdetection (also referred to as the in cell touch panel on array (ITPA)function). For example, performing a touch detection by utilizing atleast a portion of the first pixel electrodes PE1 and/or the commonelectrodes COM. In other words, the liquid crystal display panel 100 mayhave a viewing angle control (VAC) function and an ITPA touch detectionfunction. In addition, the number of the first pixel electrodes PE1 maybe ⅓, ⅔, or ½ of the total number of the first pixel electrodes PE1 andthe second pixel electrodes PE2, but not limited thereto.

Please refer to FIG. 1 to FIG. 7. FIG. 3 is a schematic graph of acomparison between front-viewing-angle transmittances of the liquidcrystal display panel of the present embodiment and a liquid crystaldisplay panel of a comparative embodiment. FIG. 4 is a schematic graphof a comparison between side-viewing-angle transmittances of the liquidcrystal display panel of the present embodiment and the liquid crystaldisplay panel of the comparative embodiment. FIG. 5 is a schematic graphof a comparison between front-viewing-angle transmittances of the liquidcrystal display panel of the present embodiment with different voltagesapplied to the first auxiliary electrodes. FIG. 6 and FIG. 7 areschematic graphs of a comparison between side-viewing-angletransmittances of the liquid crystal display panel of the presentembodiment and the liquid crystal display panel of the comparativeembodiments with different voltages applied to the first auxiliaryelectrodes respectively. The difference between the liquid crystaldisplay panel of the comparative embodiment and the liquid crystaldisplay panel of the present embodiment is that, the first auxiliaryelectrodes in the liquid crystal display panel of the comparativeembodiment are disposed in the entire pixel areas. In addition, theside-viewing-angle transmittance is a display result in the case that aside viewing angle is about 50 degrees.

As shown in FIG. 1, FIG. 2, and FIG. 3, a line L110 represents afront-viewing-angle transmittance of the liquid crystal display panel ofthe comparative embodiment in the narrow viewing angle mode, a line L130represents a front-viewing-angle transmittance of the liquid crystaldisplay panel of the comparative embodiment in the wide viewing anglemode, a line 210 represents a front-viewing-angle transmittance of theliquid crystal display panel 100 of the present embodiment in the narrowviewing angle mode with the number of the first pixel electrodes PE1being ½ of the total number of the first pixel electrodes PE1 and thesecond pixel electrodes PE2, and a line L310 represents afront-viewing-angle transmittance of the liquid crystal display panel100 of the present embodiment in the narrow viewing angle mode with thenumber of the first pixel electrodes PE1 being ⅔ of the total number ofthe first pixel electrodes PE1 and the second pixel electrodes PE2. Itcan be known from FIG. 3 that, when the first auxiliary electrodes E1are disposed only in a portion of the pixel areas PX (that is, when thefirst pixel electrodes PE1 are not overlapping the first auxiliaryelectrodes E1), the front-viewing-angle transmittance in the narrowviewing angle mode can be effectively increased; and when the number ofpixel areas PX without the first auxiliary electrodes E1 being disposedis increased (that is, when a relative proportion of the number of thefirst pixel electrodes PE1 that are not overlapping the first auxiliaryelectrodes E1 is higher), a higher degree of increase in thefront-viewing-angle transmittance can be obtained.

In addition, as shown in FIG. 1, FIG. 2, and FIG. 4, a line L120represents a side-viewing-angle transmittance of the liquid crystaldisplay panel of the comparative embodiment in the narrow viewing anglemode, a line L140 represents a side-viewing-angle transmittance of theliquid crystal display panel of the comparative embodiment in the wideviewing angle mode, a line L220 represents a side-viewing-angletransmittance of the liquid crystal display panel 100 of the presentembodiment in the narrow viewing angle mode with the number of the firstpixel electrodes PE1 being ½ of the total number of the first pixelelectrodes PE1 and the second pixel electrodes PE2, and a line L320represents a side-viewing-angle transmittance of the liquid crystaldisplay panel 100 of the present embodiment in the narrow viewing anglemode with the number of the first pixel electrodes PE1 being ⅔ of thetotal number of the first pixel electrodes PE1 and the second pixelelectrodes PE2. It can be known from FIG. 4 that, although theside-viewing-angle transmittance may also be increased along with theincrease in the proportion of the number of the first pixel electrodesPE1 not overlapping the first auxiliary electrodes E1, aside-viewing-angle display contrast in the narrow viewing angle mode isstill lower than a side-viewing-angle display contrast in the wideviewing angle mode, that is to say, a narrow viewing angle displayeffect can still be presented.

In addition, in the driving method of the liquid crystal display panel100 of the present embodiment, the side-viewing-angle display contrastmay be further reduced by adjusting the voltage difference between thefirst auxiliary electrodes E1 and the second pixel electrodes PE2. Asshown in FIG. 1, FIG. 2, and FIG. 5 to FIG. 7, the line L210 representsa front-viewing-angle transmittance of the liquid crystal display panel100 of the present embodiment in the narrow viewing angle mode with thenumber of the first pixel electrodes PE1 being ½ of the total number ofthe first pixel electrodes PE1 and the second pixel electrodes PE2 and a5 volts voltage difference between the common electrodes COM and thesecond pixel electrodes PE2, a line L211 represents afront-viewing-angle transmittance of the liquid crystal display panel100 of the present embodiment in the narrow viewing angle mode with thenumber of the first pixel electrodes PE1 being ½ of the total number ofthe first pixel electrodes PE1 and the second pixel electrodes PE2 and a6 volts voltage difference between the common electrodes COM and thesecond pixel electrodes PE2, a line 212 represents a front-viewing-angletransmittance of the liquid crystal display panel 100 of the presentembodiment in the narrow viewing angle mode with the number of the firstpixel electrodes PE1 being ½ of the total number of the first pixelelectrodes PE1 and the second pixel electrodes PE2 and a 7 volts voltagedifference between the common electrodes COM and the second pixelelectrodes PE2, the line L220 represents a side-viewing-angletransmittance of the liquid crystal display panel 100 of the presentembodiment in the narrow viewing angle mode with the number of the firstpixel electrodes PE1 being ½ of the total number of the first pixelelectrodes PE1 and the second pixel electrodes PE2 and a 5 volts voltagedifference between the common electrodes COM and the second pixelelectrodes PE2, and the line L120 represents a side-viewing-angletransmittance of the liquid crystal display panel of the comparativeembodiment in the narrow viewing angle mode with a 5 volts voltagedifference between the common electrodes COM and the second pixelelectrodes PE2. A line L222 represents a side-viewing-angletransmittance of the liquid crystal display panel 100 of the presentembodiment in the narrow viewing angle mode with the number of the firstpixel electrodes PE1 being ½ of the total number of the first pixelelectrodes PE1 and the second pixel electrodes PE2 and a 7 volts voltagedifference between the common electrodes COM and the second pixelelectrodes PE2, and a line L122 represents a side-viewing-angletransmittance of the liquid crystal display panel of the comparativeembodiment in the narrow viewing angle mode with a 7 volts voltagedifference between the common electrodes COM and the second pixelelectrodes PE2. It can be known from FIG. 5 to FIG. 7 that, the increaseof the voltage difference can effectively reduce the side-viewing-angledisplay contrast in the narrow viewing angle mode without affecting afront-viewing-angle display contrast in the narrow viewing angle mode.

Next, different ways of disposing the first auxiliary electrodes of thepresent embodiment are described in multiple aspects. Please refer toFIG. 1, FIG. 2, and FIG. 8. FIG. 8 is a schematic view of a way ofdisposing the first auxiliary electrodes of the liquid crystal displaypanel of the present embodiment in a first aspect. As shown in FIG. 1,FIG. 2, and FIG. 8, multiple first pixel electrodes PE1 may be arrangedalong a first direction Y to form a first pixel electrode set PS1,thereby forming multiple first pixel electrode sets PS1 arranged along asecond direction X, multiple second pixel electrodes PE2 may be arrangedin the first direction Y to form a second pixel electrode set PS2,thereby forming multiple second pixel electrode sets PS2 arranged alongthe second direction X, and the multiple first pixel electrode sets PS1and the multiple second pixel electrode sets PS2 may be, for example,alternately arranged along the second direction X. The first direction Ymay be orthogonal to the second direction X, but not limited thereto.When each of the gate lines GL extends along the second direction X andeach of the data lines DL extends along the first direction Y, the firstpixel electrode set PS1 may be considered as a first pixel electrodecolumn and the second pixel electrode set PS2 may be considered as asecond pixel electrode column, but not limited thereto. In this aspect,the number of the first pixel electrodes PE1 is ½ of the total number ofthe first pixel electrodes PE1 and the second pixel electrodes PE2 andthe number of the first pixel electrodes PE1 is the same as the numberof the second pixel electrodes PE2, but not limited thereto. Inaddition, the first pixel electrodes PE1 correspond to a first color, asecond color, and a third color (for example, a red color, a greencolor, and a blue color) respectively and the second pixel electrodesPE2 correspond to the first color, the second color, and the third colorrespectively, but not limited thereto. The numbers of the first pixelelectrodes PE1 and the second pixel electrodes PE2 corresponding to thesame color are the same. For example, the first pixel areas PX maycomprise a plurality of first color first pixel areas R1, a plurality ofsecond color first pixel areas G1, and a plurality of third color firstpixel areas B1, and the second pixel areas PX2 may comprise a pluralityof first color second pixel areas R2, a plurality of second color secondpixel areas G2, and a plurality of third color second pixel areas B2.The first auxiliary electrodes E1 are only disposed in the first colorsecond pixel areas R2, the second color second pixel areas G2, and thethird color second pixel areas B2, and the first auxiliary electrodes E1are not disposed in the first color first pixel areas R1, the secondcolor first pixel areas G1, or the third color first pixel areas B1. Inthe present aspect, the number of the first color first pixel areas R1is the same as the number of the first color second pixel areas R2, thenumber of the second color first pixel areas G1 is the same as thenumber of the second color second pixel areas G2, and the number of thethird color first pixel areas B1 is the same as the number of the thirdcolor second pixel areas B2.

In addition, it should be noted that, in the driving method of theliquid crystal display panel 100, the second pixel electrodes PE2 maycomprise a plurality of first polarity pixel electrodes PP1 and aplurality of second polarity pixel electrodes PP2, wherein a drivingpolarity of the first polarity pixel electrode PP1 is opposite to adriving polarity of the second polarity pixel electrode PP2 (forexample, in a display frame, the first polarity pixel electrode PP1 andthe second polarity pixel electrode PP2 have a positive polarity and anegative polarity respectively), and the first pixel electrodes PE1 maycomprise a plurality of third polarity pixel electrodes PP3 and aplurality of fourth polarity pixel electrodes PP4, wherein a drivingpolarity of the third polarity pixel electrode PP3 is opposite to adriving polarity of the fourth polarity pixel electrode PP4 (forexample, in the above-mentioned display frame, the third polarity pixelelectrode PP3 and the fourth polarity pixel electrode PP4 have apositive polarity and a negative polarity respectively). In the abovedriving polarity design, the driving manner shown in FIG. 8 may beregarded as a dot-inversion driving manner. Each of the first auxiliaryelectrodes E1 is disposed corresponding to one of the first polaritypixel electrodes PP1 or one of the second polarity pixel electrodes PP2,and the number of the first polarity pixel electrodes PP1 is the same asthe number of the second polarity pixel electrodes PP2. The firstauxiliary electrodes E1 are not disposed corresponding to the thirdpolarity pixel electrodes PP3 or the fourth polarity pixel electrodesPP4, and the number of the third polarity pixel electrodes PP3 is thesame as the number of the fourth polarity pixel electrodes PP4.Accordingly, an abnormal display frame (such as a flicker) caused by adisplay difference between pixel areas can be further improved, forexample.

Please refer to FIG. 1, FIG. 2, and FIG. 9. FIG. 9 is a schematic viewof a way of disposing the first auxiliary electrodes of the liquidcrystal display panel of the present embodiment in a second aspect. Asshown in FIG. 1, FIG. 2, and FIG. 9, the difference between the firstaspect and the present aspect is that, in the present aspect, multiplefirst pixel electrodes PE1 may be arranged along the second direction Xto form a first pixel electrode set PS1, thereby forming multiple firstpixel electrode sets PS1 arranged along the first direction Y, multiplesecond pixel electrodes PE2 may be arranged along the second direction Xto form a second pixel electrode set PS2, thereby forming multiplesecond pixel electrode sets PS2 arranged along the first direction Y,and the multiple first pixel electrode sets PS1 and the multiple secondpixel electrode sets PS2 may be, for example, alternately arranged alongthe first direction Y. When each of the gate lines GL extends along thesecond direction X and each of the data lines DL extends along the firstdirection Y, the first pixel electrode set PS1 may be considered as afirst pixel electrode row and the second pixel electrode set PS2 may beconsidered as a second pixel electrode row, but not limited thereto.

Please refer to FIG. 1, FIG. 2, and FIG. 10. FIG. 10 is a schematic viewof a way of disposing the first auxiliary electrodes of the liquidcrystal display panel of the present embodiment in a third aspect. Asshown in FIG. 1, FIG. 2, and FIG. 10, the difference between the secondaspect and the present aspect is that, the driving method in the presentaspect may be regarded as a two-dot-inversion driving manner. In otherwords, the way of disposing the first auxiliary electrodes E1 indifferent columns separated from each other may be applicable to boththe dot-inversion driving manner and the two-dot-inversion drivingmanner.

Please refer to FIG. 1, FIG. 2, and FIG. 11. FIG. 11 is a schematic viewof a way of disposing the first auxiliary electrodes of the liquidcrystal display panel of the present embodiment in a fourth aspect. Asshown in FIG. 1, FIG. 2, and FIG. 11, the difference between the thirdaspect and the present aspect is that, in the present aspect, the firstpixel electrodes PE1 and the second pixel electrodes PE2 are alternatelyarranged along the first direction Y and the second direction X.

Please refer to FIG. 1, FIG. 2, and FIG. 12. FIG. 12 is a schematic viewof a way of disposing the first auxiliary electrodes of the liquidcrystal display panel of the present embodiment in a fifth aspect. Asshown in FIG. 1, FIG. 2, and FIG. 12, the difference between the firstaspect and the present aspect is that, in the present aspect, the numberof the first pixel electrodes PE1 is ⅔ of the total number of the firstpixel electrodes PE1 and the second pixel electrodes PE2, and one secondpixel electrode PE2 and two first pixel electrodes PE1 form a repeatingunit (for example, a first repeating unit RU1 shown in FIG. 12), therebyforming a plurality of repeating units. In the present aspect, each ofthe first repeating units RU1 only has one first auxiliary electrode E1,and as for a single pixel area PX column (one pixel area PX column thatextends along the first direction Y), adjacent pixel areas PX with thecorresponding first auxiliary electrodes E1 are separated by twoadjacent pixel areas PX without the corresponding first auxiliaryelectrodes E1 therebeween; as for a single pixel area PX row (one pixelarea PX row that extends along the second direction X), adjacent pixelareas PX with the corresponding first auxiliary electrodes E1 areseparated by one pixel area PX without the corresponding first auxiliaryelectrode E1 therebetween, while in two adjacent first repeating unitsRU1 arranged along the second direction X, the first auxiliaryelectrodes E1 are staggered, but the present disclosure is not limitedthereto.

Please refer to FIG. 1, FIG. 2, and FIG. 13. FIG. 13 is a schematic viewof a way of disposing the first auxiliary electrodes of the liquidcrystal display panel of the present embodiment in a sixth aspect. Asshown in FIG. 1, FIG. 2, and FIG. 13, the difference between the fifthaspect and the present aspect is that, in the present aspect, the secondpixel electrodes PE2 may be successively arranged along the seconddirection X, and two adjacent first pixel electrodes PE1 may be disposedbetween two adjacent second pixel electrodes PE2 in the first directionY.

Please refer to FIG. 1, FIG. 2, and FIG. 14. FIG. 14 is a schematic viewof a way of disposing the first auxiliary electrodes of the liquidcrystal display panel of the present embodiment in a seventh aspect. Asshown in FIG. 1, FIG. 2, and FIG. 14, the difference between the fifthaspect and the present aspect is that, in the present aspect, the firstpixel electrodes PE1 and the second pixel electrodes PE2 may berespectively arranged in an oblique direction different from the firstdirection Y and the second direction X.

Please refer to FIG. 1, FIG. 2, and FIG. 15. FIG. 15 is a schematic viewof a way of disposing the first auxiliary electrodes of the liquidcrystal display panel of the present embodiment in an eighth aspect. Asshown in FIG. 1, FIG. 2, and FIG. 15, the difference between the seventhaspect and the present aspect is that, the driving method in the presentaspect may be regarded as a two-dot-inversion driving manner. In otherwords, the way of disposing of respectively arranging the first pixelelectrodes PE1 and the second pixel electrodes PE2 along an obliquedirection different from the first direction Y and the second directionX may be applicable to both the dot-inversion driving manner and thetwo-dot-inversion driving manner.

Please refer to FIG. 1, FIG. 2, and FIG. 16. FIG. 16 is a schematic viewof a way of disposing the first auxiliary electrodes of the liquidcrystal display panel of the present embodiment in a ninth aspect. Asshown in FIG. 1, FIG. 2, and FIG. 16, the difference between the fifthaspect and the present aspect is that, in the present aspect, the numberof the first pixel electrodes PE1 is ⅓ of the total number of the firstpixel electrodes PE1 and the second pixel electrodes PE2, and one firstpixel electrode PE1 and two second pixel electrodes PE2 form a repeatingunit, thereby forming a plurality of repeating units (for example,second repeating units RU2 shown in FIG. 16). In the present aspect,each of the second repeating units RU2 only has two first auxiliaryelectrodes E1, but not limited thereto.

Please refer to FIG. 1, FIG. 2, and FIG. 17. FIG. 17 is a schematic viewof a way of disposing the first auxiliary electrodes of the liquidcrystal display panel of the present embodiment in a tenth aspect. Asshown in FIG. 1, FIG. 2, and FIG. 17, the difference between the ninthaspect and the present aspect is that, in the present aspect, the firstpixel electrodes PE1 may be arranged along the second direction X, andtwo adjacent second pixel electrodes PE2 may be disposed between twoadjacent first pixel electrodes PE1 in the first direction Y.

Please refer to FIG. 1, FIG. 2, and FIG. 18. FIG. 18 is a schematic viewof a way of disposing the first auxiliary electrodes of the liquidcrystal display panel of the present embodiment in an eleventh aspect.As shown in FIG. 1, FIG. 2, and FIG. 18, the difference between theninth aspect and the present aspect is that, in the present aspect, thefirst pixel electrodes PE1 and the second pixel electrodes PE2 may berespectively arranged along an oblique direction different from thefirst direction Y and the second direction X.

It should be noted that, the disposing and distribution of the firstauxiliary electrodes of the present disclosure and the driving manner ofthe liquid crystal display panel are not limited to the first toeleventh aspects. Other appropriate ways of disposing and distributingthe first auxiliary electrodes and other appropriate inversion drivingmanners may also be applicable to the liquid crystal display panel ofthe present disclosure.

Different embodiments of the present disclosure are described below. Forthe simplification of description, differences between the embodimentsare described in detail, and similar details of the embodiments will notbe repeatedly described. In addition, same elements in the embodimentsof the present disclosure are labeled with the same reference numeralsfor easy referencing between each of the embodiments.

Please refer to FIG. 19 and FIG. 20. FIG. 19 is a schematic view of aliquid crystal display panel 201 of a second embodiment of the presentdisclosure. FIG. 20 is a schematic sectional view depicted along a lineB-B′ in FIG. 19. As shown in FIG. 19 and FIG. 20, the difference betweenthe liquid crystal display panel of the first embodiment and the liquidcrystal display panel 201 of the present embodiment is that, the liquidcrystal display panel 201 of the present embodiment further comprises aplurality of second auxiliary electrodes E2 disposed on the secondsubstrate 20 and electrically isolated from the first auxiliaryelectrodes E1. The second auxiliary electrodes E2 overlap the firstpixel electrodes PE1 respectively in the vertical projection directionZ, and the second pixel electrodes PE2 are not overlapping the secondauxiliary electrodes E2 in the vertical projection direction Z. In thepresent embodiment, the first auxiliary electrodes E1 are disposedbetween the color filter layer CF and the second substrate 20, and thesecond auxiliary electrodes E2 are disposed between the color filterlayer CF and the liquid crystal layer 30. The protection layer OC isdisposed on the second substrate 20 and covers the first auxiliaryelectrodes E1, the color filter layer CF, and the patternedlight-shielding layer BM. In addition, the common electrode COM of thepresent embodiment may transfer a signal through a patterned metal layer19, but not limited thereto. The second auxiliary electrodes E2 of thepresent embodiment are at least partially disposed between the colorfilter layer CF and the protection layer OC, and the second auxiliaryelectrodes E2 are further at least partially disposed between thepatterned light-shielding layer BM and the protection layer OC. In otherwords, the second auxiliary electrodes E2 may be formed after formingthe patterned light-shielding layer BM and before forming the protectionlayer OC. In areas (for example, second areas RG2 shown in FIG. 19) withthe second auxiliary electrodes E2 disposed, perform a force touchdetection by utilizing the second auxiliary electrodes E2; in areas (forexample, first areas RG1 shown in FIG. 19) without the first auxiliaryelectrodes E1 and second auxiliary electrodes E2 disposed, at least aportion of the first pixel electrodes PE1 and/or the common electrodesCOM may be configured or conducted to perform an ITPA touch detection.In other words, the liquid crystal display panel 201 may have a viewingangle control (VAC) function, an ITPA touch detection function, and aforce touch detection function.

Please refer to FIG. 21. FIG. 21 is a schematic view of a liquid crystaldisplay panel 202 of a third embodiment of the present disclosure. Asshown in FIG. 21, the difference between the liquid crystal displaypanel of the second embodiment and the liquid crystal display panel 202of the present embodiment is that, in the liquid crystal display panel202 of the present embodiment, the second auxiliary electrodes E2 are atleast partially disposed between the color filter layer CF and thepatterned light-shielding layer BM. In other words, the second auxiliaryelectrodes E2 of the present embodiment may be formed on the colorfilter layer CF before forming the patterned light-shielding layer BM.

Please refer to FIG. 22. FIG. 22 is a schematic view of a liquid crystaldisplay panel 203 of a fourth embodiment of the present disclosure. Asshown in FIG. 22, the difference between the liquid crystal displaypanel of the second embodiment and the liquid crystal display panel 203of the present embodiment is that, in the liquid crystal display panel203 of the present embodiment, the second auxiliary electrodes E2 are atleast partially disposed between the protection layer OC and the liquidcrystal layer 30. In other words, the second auxiliary electrodes E2 ofthe present embodiment may be formed on the protection layer OC.

Please refer to FIG. 23 to FIG. 25. FIG. 23 is a schematic view of aliquid crystal display panel 204 of a fifth embodiment of the presentdisclosure. FIG. 24 is a schematic view of a liquid crystal displaypanel 205 of a sixth embodiment of the present disclosure. FIG. 25 is aschematic view of a liquid crystal display panel 206 of a seventhembodiment of the present disclosure. As shown in FIG. 23 to FIG. 25,the difference between the liquid crystal display panels of the secondto fourth embodiments and the liquid crystal display panel 204, theliquid crystal display panel 205, and the liquid crystal display panel206 is that, in the liquid crystal display panel 204, the liquid crystaldisplay panel 205, and the liquid crystal display panel 206, a fourthdielectric layer 14 disposed on the second dielectric layer 12 isfurther comprised, and the common electrodes COM are disposed on thefourth dielectric layer 14. A contact through-hole V passes through thefourth dielectric layer 14 to expose at least a portion of thecorresponding patterned metal layer 19, and the common electrode COM iselectrically connected to the patterned metal layer 19 through thecontact through-hole V.

To sum up, in the liquid crystal display panel of the presentdisclosure, since the first auxiliary electrodes are configured to notoverlap with the first pixel electrodes, that is, the first auxiliaryelectrodes configured to achieve a narrow viewing angle display effectare not disposed in the entire pixel areas, a front-viewing-angletransmittance in the narrow viewing angle mode can thereby be increased,and on the other hand, since the first pixel electrodes and the commonelectrodes in the pixel areas without the first auxiliary electrodesbeing disposed are not covered by the first auxiliary electrodes, atleast a portion of the first pixel electrodes and/or the commonelectrodes may be configured to perform touch detection. In addition,the second auxiliary electrodes overlapping the first pixel electrodesand electrically isolated from the first auxiliary electrodes may bedisposed in the liquid crystal display panel and are configured toperform the force touch detection, such that the liquid crystal displaypanel of the present disclosure can have the viewing angle control (VAC)function, the ITPA touch detection function, and the force touchdetection function.

The above description only provides preferred embodiments of the presentdisclosure, and all equivalent changes and modifications made accordingto the claims of the present disclosure fall within the scope of thepresent disclosure.

What is claimed is:
 1. A liquid crystal display panel, comprising: afirst substrate; a plurality of first pixel electrodes and a pluralityof second pixel electrodes, disposed on the first substrate; a pluralityof common electrodes, disposed on the first substrate; a secondsubstrate, disposed opposite to the first substrate; a plurality offirst auxiliary electrodes, disposed on the second substrate, whereinone of the first pixel electrodes is not overlapping one of the firstauxiliary electrodes in a vertical projection direction; and a liquidcrystal layer, disposed between the first substrate and the secondsubstrate.
 2. The liquid crystal display panel of claim 1, wherein oneof the second pixel electrodes overlaps one of the first auxiliaryelectrodes in the vertical projection direction.
 3. The liquid crystaldisplay panel of claim 2, wherein the first pixel electrodes arearranged along a first direction to form a plurality of first pixelelectrode sets, the second pixel electrodes are arranged along the firstdirection to form a plurality of second pixel electrode sets, and thefirst pixel electrode sets and the second pixel electrode sets arealternately arranged along a second direction.
 4. The liquid crystaldisplay panel of claim 2, wherein the first pixel electrodes and thesecond pixel electrodes are alternately arranged along a first directionand a second direction.
 5. The liquid crystal display panel of claim 2,wherein a number of the first pixel electrodes is the same as a numberof the second pixel electrodes.
 6. The liquid crystal display panel ofclaim 5, wherein the first pixel electrodes correspond to a first color,a second color, and a third color, respectively, and the second pixelelectrodes correspond to the first color, the second color, and thethird color, respectively; and the number of the first pixel electrodesand the number of the second pixel electrodes corresponding to the samecolor are the same.
 7. The liquid crystal display panel of claim 2,wherein a number of the first pixel electrodes is ⅓, ⅔, or ½ of a totalnumber of the first pixel electrodes and the second pixel electrodes. 8.The liquid crystal display panel of claim 7, wherein the number of thefirst pixel electrodes is ⅓ of the total number of the first pixelelectrodes and the second pixel electrodes, and one of the first pixelelectrodes and two of the second pixel electrodes are sequentiallyarranged along a first direction to form a repeating unit, therebyforming a plurality of repeating units.
 9. The liquid crystal displaypanel of claim 2, further comprising: a plurality of second auxiliaryelectrodes, disposed on the second substrate and electrically isolatedfrom the first auxiliary electrodes, wherein the second auxiliaryelectrodes overlap the first pixel electrodes in the vertical projectiondirection respectively.
 10. The liquid crystal display panel of claim 9,wherein the second pixel electrodes are not overlapping the secondauxiliary electrodes in the vertical projection direction.
 11. Theliquid crystal display panel of claim 9, further comprising: a colorfilter layer, disposed on the second substrate, wherein the firstauxiliary electrodes are disposed between the color filter layer and thesecond substrate, and the second auxiliary electrodes are disposedbetween the color filter layer and the liquid crystal layer.
 12. Theliquid crystal display panel of claim 11, further comprising: apatterned light-shielding layer, disposed on the second substrate; and aprotection layer, disposed on the second substrate and covering thefirst auxiliary electrodes, the color filter layer, and the patternedlight-shielding layer.
 13. The liquid crystal display panel of claim 12,wherein the second auxiliary electrodes are at least partially disposedbetween the color filter layer and the protection layer.
 14. The liquidcrystal display panel of claim 13, wherein the second auxiliaryelectrodes are further at least partially disposed between the colorfilter layer and the patterned light-shielding layer.
 15. The liquidcrystal display panel of claim 13, wherein the second auxiliaryelectrodes are further at least partially disposed between the patternedlight-shielding layer and the protection layer.
 16. The liquid crystaldisplay panel of claim 12, wherein the second auxiliary electrodes areat least partially disposed between the protection layer and the liquidcrystal layer.
 17. A driving method of a liquid crystal display panel,comprising: providing the liquid crystal display panel of claim 1; in awide viewing angle mode, providing a first voltage difference betweenthe first auxiliary electrodes and the common electrodes; and in anarrow viewing angle mode, providing a second voltage difference betweenthe first auxiliary electrodes and the common electrodes, wherein thefirst voltage difference is less than the second voltage difference. 18.The driving method of the liquid crystal display panel of claim 17,wherein one of the second pixel electrodes overlaps one of the firstauxiliary electrodes in the vertical projection direction.
 19. Thedriving method of the liquid crystal display panel of claim 18, whereinthe second pixel electrodes comprise a plurality of first polarity pixelelectrodes and a plurality of second polarity pixel electrodes, adriving polarity of the first polarity pixel electrodes is opposite to adriving polarity of the second polarity pixel electrodes, each of thefirst auxiliary electrodes is disposed corresponding to one of the firstpolarity pixel electrodes or one of the second polarity pixelelectrodes, and a number of the first polarity pixel electrodes is thesame as a number of the second polarity pixel electrodes.
 20. Thedriving method of the liquid crystal display panel of claim 18, whereinthe first pixel electrodes comprise a plurality of third polarity pixelelectrodes and a plurality of fourth polarity pixel electrodes, adriving polarity of the third polarity pixel electrode is opposite to adriving polarity of the fourth polarity pixel electrode, and a number ofthe third polarity pixel electrodes is the same as a number of thefourth polarity pixel electrodes.
 21. The driving method of the liquidcrystal display panel of claim 18, further comprising: performing atouch detection by utilizing at least a portion of at least one thefirst pixel electrodes and the common electrodes.
 22. The driving methodof the liquid crystal display panel of claim 18, wherein the liquidcrystal display panel further comprises: a plurality of second auxiliaryelectrodes, disposed on the second substrate and electrically isolatedfrom the first auxiliary electrodes, wherein the second auxiliaryelectrodes overlap the first pixel electrodes in the vertical projectiondirection respectively.
 23. The driving method of the liquid crystaldisplay panel of claim 22, further comprising: performing a force touchdetection by utilizing the second auxiliary electrodes.